Propan-1-amine · mono-n-propylamine · ≥99% commercial, LR and AR grades
n-Propylamine is the straight-chain three-carbon primary amine, and the usual choice when a molecule needs an unbranched propyl group on nitrogen. Chelora Amines supplies it worldwide — to pharmaceutical, agrochemical, rubber, dye and water-treatment plants across Asia, the Middle East, Africa, Europe and the Americas, as well as throughout India. Packed in carboys, drums, IBC totes or bulk, shipped in UN-specification packaging with a batch-wise COA and SDS.
36.03 + 7.06 + 14.01 + 2.02 = 59.11 g/mol
n-Propylamine, also written as propan-1-amine or mono-n-propylamine, is ammonia with one hydrogen replaced by an unbranched three-carbon chain. It is a clear, colourless, highly flammable liquid with the sharp ammoniacal smell common to the lower alkyl amines, and it mixes with water in all proportions.
Chemically it sits in a useful middle ground. It is more nucleophilic and more lipophilic than methylamine or ethylamine, so it reacts cleanly and the resulting molecule carries a little more oil solubility, yet the chain is still short enough that the amine stays water-miscible and easy to strip or distil out of a reaction mixture.
The straight chain matters. n-Propylamine and isopropylamine share a molecular formula and a molecular weight, but a linear propyl group and a branched isopropyl group behave differently: the linear amine is less hindered at nitrogen, reacts faster in alkylation and acylation, and gives a different crystal habit and melting point in the finished salt or amide. Buyers who substitute one for the other usually find out at the crystallisation step.
Commercially it is made by reacting n-propanol with ammonia over an acidic or metal catalyst, or by reductive amination of propionaldehyde. Both routes make the mono-, di- and tri-substituted amines together, so every specification controls di-n-propylamine, tri-n-propylamine and residual ammonia alongside the assay.
| Chemical name | n-Propylamine (propan-1-amine) |
| Common synonyms | Mono-n-propylamine, 1-aminopropane, propylamine, n-PA |
| CAS number | 107-10-8 |
| EC / EINECS number | 203-462-3 |
| HS / HSN code | 2921 19 (acyclic monoamines and derivatives) |
| Molecular formula | CH₃CH₂CH₂NH₂ (C₃H₉N) |
| Molecular weight | 59.11 g/mol |
| Appearance | Clear, colourless, mobile liquid |
| Odour | Strong ammoniacal, fish-like |
| Melting point | About −83 °C |
| Boiling point | 47–49 °C |
| Density | About 0.717 g/cm³ at 20 °C |
| Vapour pressure | About 250–330 mbar at 20 °C |
| Flash point | About −37 °C (closed cup) |
| Auto-ignition temperature | About 318 °C |
| Flammability limits in air | Approximately 2.0 – 10.4 vol % |
| Solubility in water | Completely miscible |
| pKa of conjugate acid | About 10.7 at 25 °C |
| Refractive index | About 1.388 at 20 °C |
| pH | Strongly alkaline in aqueous solution |
| UN number | UN 1277, Class 3 with subsidiary risk 8, packing group II |
Figures are typical literature values for orientation. Values for the material you order are stated on its Certificate of Analysis and Safety Data Sheet.
Two properties explain almost everything n-propylamine is bought to do: the nitrogen lone pair makes it a strong base, and the straight, unhindered propyl chain keeps that nitrogen open and nucleophilic. These are the reaction types process chemists reach for it to run.
Reacts with mineral and organic acids to give water-soluble n-propylammonium salts, used to make crystalline intermediates easier to handle and to build liquid agrochemical formulations.
CH₃CH₂CH₂NH₂ + HCl → saltWith acid chlorides, anhydrides and esters it forms N-propyl amides — one of the most common single steps in pharmaceutical and crop-protection synthesis.
RCOCl + PrNH₂ → RCONHPrCondenses with aldehydes and ketones to give an imine that is reduced in situ to a secondary N-propyl amine, the standard route to many API side chains.
R₂C=O + PrNH₂ → R₂CH–NHPrDisplaces halide from alkyl and activated aryl halides. Over-alkylation is the usual risk, controlled by running the amine in excess and keeping the temperature down.
R–X + PrNH₂ → R–NHPrAdds across isocyanates to give N-propyl ureas, and reacts with chloroformates and carbonates to give N-propyl carbamates used in agrochemical actives.
RNCO + PrNH₂ → ureaReacts with sulfonyl chlorides to give N-propyl sulfonamides, a recurring motif in diuretics, herbicides and enzyme inhibitors.
RSO₂Cl + PrNH₂ → RSO₂NHPrOpens epoxides at the less hindered carbon to give N-propyl amino alcohols used in surfactants, chelants and coating additives.
epoxide + PrNH₂ → amino alcoholWith a conjugate acid pKa near 10.7 it mops up HCl and other acids released during a reaction, holding the pH where the main chemistry works.
pKa ≈ 10.7 at 25 °CProcess notes. Reactions with n-propylamine are exothermic, so add it under control with cooling available and allow for the heat of neutralisation when it meets an acid. The boiling point sits just below 50 °C, so a sealed vessel builds pressure quickly — vent, reflux or design for pressure rather than heating a closed drum. Where the reaction will not tolerate water, take the neat amine rather than an aqueous dilution.
Discuss your processAlmost all commercial n-propylamine comes from one of two catalytic routes. Knowing which one made your batch explains the impurities the specification controls, because the by-products are made in the same reactor.
n-Propanol, or propionaldehyde for the reductive route, is vaporised and mixed with a large excess of ammonia to push the equilibrium towards the mono-substituted amine.
The mixture passes over an acidic alumina, zeolite or supported nickel, copper or cobalt catalyst at elevated temperature and moderate pressure, with hydrogen present on the reductive route.
The reactor delivers n-propylamine together with di-n-propylamine, tri-n-propylamine, unconverted alcohol, water and unreacted ammonia.
Ammonia is recovered and recycled and a distillation train separates the mono, di and tri amines. Off-spec cuts return to the reactor rather than being discarded.
Product is dried to specification, tested for assay, isomers, water and colour, then filled under nitrogen into carboys, drums, totes or bulk containers.
Because all three propylamines leave the reactor together, the real quality question is not only how much n-propylamine is present but what came with it. Di-n-propylamine is a secondary amine that will react once and stop, tri-n-propylamine is tertiary and simply reports as unusable mass, and free ammonia competes for the same electrophile and can leave you with an unwanted primary amide.
Isopropylamine, where the plant also runs the branched product, is the other impurity worth naming in an enquiry. If your step is sensitive to any of these, state the limit and we will match the batch rather than send the standard commercial cut.
In sealed original packing, stored cool and out of sunlight, n-propylamine is normally used within twelve months, and we suggest a re-check of assay, water and colour after that before a critical batch. The material does not spoil so much as drift: air and carbon dioxide ingress raise the APHA colour and throw a carbamate haze, and repeatedly opening a part-used drum is the usual cause.
Keep drums closed between draws, blanket tanks with nitrogen where you can, and never store packs against a hot wall or in direct sun. A retained sample of every batch is held here, so a consignment queried months later can be tested against the original material.
Tell us the reaction and the limits that matter and we will confirm the grade. Commercial grade covers most production use; LR and AR grades are available for laboratory, method development and analytical work.
The everyday production grade for synthesis, salt formation and formulation work where trace limits are routine.
Tighter limits on isomers, water and colour for development chemistry, scale-up and pilot batches.
The tightest grade we offer, for analytical method work, standards preparation and QC laboratories.
Made or selected against your own limits on di-n-propylamine, ammonia, water or colour where a step is sensitive.
| Parameter | Test method | Typical specification |
|---|---|---|
| Appearance | Visual | Clear, colourless liquid, free from suspended matter |
| Assay (n-propylamine) | GC | ≥ 99.0 % w/w |
| Di-n-propylamine | GC | ≤ 0.5 % w/w |
| Tri-n-propylamine | GC | ≤ 0.2 % w/w |
| Isopropylamine | GC | ≤ 0.2 % w/w |
| Free ammonia | GC / titration | ≤ 0.2 % w/w |
| Water | Karl Fischer | ≤ 0.5 % w/w |
| Colour | APHA | ≤ 15 |
| Non-volatile matter | Gravimetric | ≤ 0.05 % w/w |
| Density at 20 °C | Densitometer | 0.714 – 0.720 g/cm³ |
| Iron (Fe) | AAS | ≤ 2 ppm |
Indicative specification for planning. The controlling document is the Certificate of Analysis issued for your batch. If your process needs tighter limits on isomers, water or colour, say so at enquiry stage and we will quote against your specification.
They share a formula, a molecular weight and three letters in most abbreviations, which is exactly why the wrong one reaches the plant. The difference is where the nitrogen sits on the chain, and that changes reaction rate, steric access and the physical behaviour of everything made downstream.
| Property | n-Propylamine | Isopropylamine | Di-n-propylamine |
|---|---|---|---|
| CAS number | 107-10-8 | 75-31-0 | 142-84-7 |
| Structure | Linear, NH₂ on the end carbon | Branched, NH₂ on the middle carbon | Two propyl chains on one nitrogen |
| Molecular weight | 59.11 | 59.11 | 101.19 |
| Amine class | Primary, two N–H bonds free | Primary, two N–H bonds free | Secondary, one N–H bond free |
| Boiling point | 47–49 °C | 32–34 °C | 105–110 °C |
| Steric access at nitrogen | Open and unhindered | Hindered by the two methyl groups | Considerably hindered |
| Typical outlets | Pharma and agro intermediates, rubber chemicals, dyes | Glyphosate and triazine herbicide salts, pharma | Herbicides, corrosion inhibitors, flotation chemicals |
Order by full name and CAS number. Write the full chemical name with the CAS number on the enquiry and on the purchase order. The same discipline avoids the other classic traps in this family: TEA can mean triethanolamine or triethylamine, and DEA can mean diethanolamine or diethylamine.
See the full amine rangen-Propylamine is bought mainly as a synthesis intermediate rather than as a finished product, so its uses follow the molecules it goes into. Here is the picture sector by sector.
A building block for N-propyl amides, sulfonamides and amine side chains in bulk drugs, including antibacterial, cardiovascular and anaesthetic intermediates. LR and AR grades suit development and validation batches.
Feeds herbicide, fungicide and insecticide intermediates, and forms water-soluble propylammonium salts used to make liquid formulations sprayable and stable.
Goes into dithiocarbamate and thiazole accelerators, antioxidants and blocked-amine curatives for elastomers, adhesives and coatings.
Used to introduce a propylamino group into azo and anthraquinone dye intermediates, and in optical brighteners and ink additives.
An intermediate for cationic polymers, flocculants, scale and corrosion inhibitors used in effluent plants, cooling systems and paper mills.
Raw material for amine oxides, amphoteric surfactants, quaternary ammonium compounds and phase-transfer catalysts.
Used in corrosion inhibitors, gas-treating and scavenging formulations, fuel and lubricant additives, and as an alkalinity source in metalworking fluids.
A general base and acid scavenger, a derivatising reagent in analysis, and a chain terminator or modifier in polymer chemistry.
If you are mapping a value chain, or looking for the product one step down from where you are, this is where n-propylamine ends up. Several of these are chemicals we can also source for you.
| Derivative | Made by | End use |
|---|---|---|
| N-Propyl amides | Acylation with acid chlorides, anhydrides or esters | Pharmaceutical and agrochemical actives and intermediates |
| N-Propyl sulfonamides | Reaction with sulfonyl chlorides | Diuretics, herbicides and enzyme-inhibitor intermediates |
| Di-n-propylamine | Further alkylation or direct manufacture | Herbicide intermediates, corrosion inhibitors and flotation reagents |
| Propylammonium salts | Neutralisation with mineral or organic acids | Water-soluble agrochemical formulations and crystalline reagents |
| N-Propyl dithiocarbamates | Reaction with carbon disulfide and a base | Rubber vulcanisation accelerators and metal-flotation collectors |
| N-Propyl ureas | Addition across isocyanates | Herbicide actives and polyurethane chain modifiers |
| N-Propyl amino alcohols | Ring opening of epoxides | Surfactants, chelants and coating additives |
| Propyl-substituted heterocycles | Cyclisation with diketones, dihalides or lactones | API cores, catalyst ligands and electronic chemicals |
| Quaternary ammonium compounds | Exhaustive alkylation | Phase-transfer catalysts, biocides and antistatic agents |
| Cationic polymers | Polycondensation with epichlorohydrin-type reagents | Flocculants, wet-strength resins and colour removal chemicals |
Looking for one of these rather than the amine itself? Ask us — several sit within our sourcing network, and we can quote the derivative and the raw material together.
Every container carries the Chelora Amines label with product name, net weight, batch number, manufacturing date, UN number and hazard pictograms.
HDPE carboys for lab qualification, pilot batches and low-consumption users.
MS and HDPE drums, the standard production pack, with tamper-evident closures.
Forklift-ready totes with bottom valves for plants drawing material every week.
Bulk loads and ISO tank containers for continuous plants and large campaigns.
Share your monthly consumption, the reaction the amine feeds and your storage setup, and we will recommend the pack size and delivery schedule that keeps your plant running without carrying excess inventory of a flammable material. Export consignments are packed in UN-specification drums and totes, palletised and stretch-wrapped, and shipped FOB, CIF or CFR through Nhava Sheva and Mundra.
Plan my supplyn-Propylamine is a highly flammable, corrosive base with a flash point far below room temperature and a boiling point below 50 °C. The notes below are a summary for planning only — always work to the Safety Data Sheet supplied with your consignment and to your own site risk assessment.
n-Propylamine is a regulated dangerous good in every mode of transport, and in some countries it is also a monitored chemical. Both are routine for us, but they shape what we need from you before a first shipment moves.
| Proper shipping name | Propylamine (n-propylamine) |
| UN number | UN 1277 |
| Hazard class | Class 3 flammable liquid, subsidiary risk 8 corrosive |
| Packing group | II |
| Labels | Flame and corrosion pictograms, with the correct orientation marks |
| Modes | Road, rail and sea (IMDG); air movement is possible within dangerous goods quantity limits |
| Segregation | Away from acids, oxidisers, halogens, hypochlorites and foodstuffs |
| Packaging | UN-specification drums, carboys and IBC totes, palletised and strapped for export |
We supply n-propylamine business to business only, against verified company credentials, consignee details and a stated industrial end use, plus any import permit the destination country requires. That keeps shipments moving through customs without delay and protects both sides.
Start account opening| Parameter | Specification | Result |
|---|---|---|
| Appearance | Clear, colourless liquid | Complies |
| Assay (GC) | ≥ 99.0 % | Complies |
| Di-n-propylamine | ≤ 0.5 % | Complies |
| Water (KF) | ≤ 0.5 % | Complies |
| Colour (APHA) | ≤ 15 | Complies |
n-propylamine is checked before dispatch and each consignment leaves with the paperwork your QC, stores and accounts teams need on day one.
The numbers on a Certificate of Analysis are only useful if you know how they were produced. These are the methods behind the figures on ours, and the checks worth repeating at your own goods-inward.
Separates n-propylamine from its isomers, homologues and residual ammonia in one run, and gives both the assay and the impurity profile that matter to your reaction.
An independent check on total amine content, useful as a quick goods-inward confirmation before a drum is released to production.
Water determination, which matters wherever the next step is moisture sensitive or the amine feeds an anhydrous reaction.
A visual platinum–cobalt comparison. A rising colour value is the earliest sign that a pack has been exposed to air or held too long.
Fast confirmation of identity and strength, and a simple way to spot a wrong pack or a contaminated drum.
Gravimetric residue and trace metal checks, which matter for catalytic steps and for any product going into a regulated formulation.
A sample from every dispatched batch is held here, so a query months later can be settled against the original material rather than an argument.
The batch number on the label ties back to the COA, the test record and the supply lot, which is what your auditor will ask to see.
Where your customer or regulator needs an independent result, we can arrange analysis at a NABL-accredited laboratory before dispatch.
Five steps for a first order of n-propylamine. Repeat orders follow the same route on a schedule that matches your consumption.
Grade, quantity, pack size and delivery location.
We confirm the grade for your process and quote, usually within 24 hours.
The batch is tested and the COA, SDS and invoice details are prepared.
Labelled packs move by road, or in UN-spec packaging for export.
Material reaches your gate and repeat dispatches are scheduled to your usage.
n-propylamine is a line on a price list and a headache in a warehouse. What separates suppliers is the grade flexibility, the paperwork and the answer you get when something is not routine.
n-Propylamine sits alongside the rest of our amine range, from ethanolamines to fatty amines. Your purchase team raises one enquiry, compares one quote and manages one vendor record instead of six.
Commercial, LR and AR material is available, so you are not forced to redesign a step around the only grade your supplier happens to carry.
COA, SDS, correct HSN and HS codes, dangerous goods declarations and certificates of origin are prepared with the consignment, not chased afterwards by your logistics team.
Tell us your limits on isomers, water, ammonia or colour and we quote against them, rather than sending the standard cut and letting your QC department find out.
Once we know your monthly draw we hold and release material on a schedule, so you carry less inventory of a flammable, corrosive product than you otherwise would.
Describe the reaction rather than the product code and we will tell you which grade fits — and say so plainly when a different amine would serve you better.
Buyers who order n-propylamine usually source these from the same list. Open any product for its specification, grades and packing, or see the full product range.
Container shipments to buyers on five continents, plus road dispatch inside India. Tell us your country and destination port and we will quote landed terms, transit time and the documentation your customs broker will ask for.
United Arab Emirates, Saudi Arabia, Oman, Qatar, Kuwait, Bahrain, Jordan, Egypt, Morocco, Kenya, Tanzania, Ethiopia, Nigeria, Ghana and South Africa.
Bangladesh, Sri Lanka, Nepal, Pakistan, Vietnam, Thailand, Indonesia, Malaysia, Singapore, the Philippines, South Korea, Japan, Taiwan, Australia and New Zealand.
Germany, the Netherlands, Belgium, France, Italy, Spain, Portugal, Poland, Czechia, the United Kingdom, Ireland, Türkiye, Russia, Ukraine, Kazakhstan and Uzbekistan.
United States, Canada, Mexico, Brazil, Argentina, Chile, Colombia, Peru, Ecuador and the Caribbean, shipped in UN-specification packaging with full DG documentation.
| Incoterms quoted | EXW, FOB, CFR, CIF and DAP, depending on your destination and preference |
| Load ports | Nhava Sheva (JNPT) and Mundra, with Chennai and Kolkata used for eastbound routings |
| Container options | Full container loads, and consolidated LCL shipments for smaller quantities |
| Typical container fill | Around 80 drums, or roughly 18 to 20 IBC totes, in a 20 ft container |
| Packing for export | UN-specification drums and totes, palletised, strapped and stretch-wrapped, with DG labelling |
| Air freight | Possible for small quantities within dangerous goods limits; most volume moves by sea |
| Payment terms | Advance, irrevocable letter of credit or agreed credit terms for established accounts |
| Before first shipment | Company credentials, end-use declaration and any import permit the destination country requires |
Road dispatch from our Mumbai base to industrial clusters in 16 states and Delhi. Open your state for the local industries we serve and the amines they order most.
Most delays in quoting n-propylamine come from a missing line in the enquiry, not from availability. Send these details and a firm price usually comes back the same day.
Not sure of some of it yet? Send what you have. A description of the reaction step and an approximate monthly volume is enough for us to come back with a recommended grade, a pack plan and an indicative price.
Send an enquiryPlain definitions of the words that appear on a n-propylamine specification, label and shipping document.
Short answers to what purchase, plant and QC teams ask us most about this product. Anything else, ask us directly.
Send the grade, quantity, pack size and your delivery address or destination port. We come back with a price, the documents that go with the batch and a dispatch or shipping plan, usually within 24 hours.